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- Question
Five bells begin to toll together and toll respectively at intervals of 6, 5, 7, 10 and 12 seconds. How many times will they toll together in one hour excluding the one at the start?
Options- A. 7 times
- B. 8 times
- C. 9 times
- D. 11 times
- Correct Answer
- 8 times
ExplanationL.C.M. of 6, 5, 7, 10 and 12 is 420.So, the bells will toll together after every 420 seconds i.e. 7 minutes.
Now, 7 x 8 = 56 and 7 x 9 = 63.
Thus, in 1-hour (or 60 minutes), the bells will toll together 8 times, excluding the one at the start.
More questions
- 1. Lungs, Liver, Kidney
Options- A. Neck
- B. Testis
- C. Heart
- D. Nose Discuss
Correct Answer: Heart
Explanation:
As Lungs, Liver and Kidney are internal part of the body, in the same way 'heart' is also an internal organ.- 2. NA
Options- A. Silicon
- B. Platinum
- C. Asenic
- D. Antimony Discuss
Correct Answer: Platinum
Explanation:
Silicon, Asenic and Antimony are metalloids while 'Platinum' is an element.
- 3. Find the odd one out:
Options- A. Flood
- B. Hurricane
- C. Avalanche
- D. Earthquake Discuss
Correct Answer:
Explanation:
Rest of them are natural calamities.
- 4. NA
Options- A. YWU
- B. NL Z
- C. KIF
- D. VTR Discuss
Correct Answer: KIF
Explanation:
In all other groups of letters, there is a gap of one leter as in the alphabet between second and third letters.
- 5. NA
Options- A. Trident
- B. Triumph
- C. Tripod
- D. Triangle Discuss
Correct Answer: Triumph
Explanation:
Eccept 'Triumph', Tri stand for there in all the other terms.
- 6. Arrange the words given below in a meaningful sequence.
1. Book 2. Pulp 3. Timber 4. Jungle 5. Paper
Options- A. 2, 5, 1, 4, 3
- B. 3, 2, 5, 1, 4
- C. 4, 3, 2, 5, 1
- D. 5, 4, 3, 1, 2 Discuss
Correct Answer: 4, 3, 2, 5, 1
- 7. Statement
Power consumption is every family has been doubled during the last five years.
Conclusion
I. There is a lot of development in the society.
II. Power rates have became cheaper.
Options- A. if only Conclusion I follows
- B. if only Conclusion II follows
- C. if both the Conclusions I or II follow
- D. if neither Conclusion I or II follow Discuss
Correct Answer: if neither Conclusion I or II follow
Explanation:
Neither of the conclusion follows from the given statement.
- 8. If X + Y means X is the daughter of Y; X - Y means X is the brother of Y; X % Y means X is the father of Y and X x Y means X is the sister of Y. Which of the following means I is the niece of J?
Options- A. J - N % C x I
- B. I x C - N % J
- C. J + M x C % I
- D. I x C + N - J Discuss
Correct Answer: I x C + N - J
Explanation:
I x C ? I is the sister of CC + N ? C is the daughter of N
and N - J ? N is the brother of I.
Hence, I is niece of J.
- 9. NA
Options- A. Bus
- B. Scooter
- C. Cycle
- D. Boat Discuss
Correct Answer: Boat
Explanation:
All others are road vehicles.
- 10. how many people sit between A and his brother?
Options- A. None
- B. One
- C. Two
- D. Three Discuss
Correct Answer: One
Explanation:
One
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